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Step CI vs SoapUI Open Source: catalog facts
Step CI	SoapUI Open Source
Freemium The open-source runner is free; the site also lists paid options and demos.	Free The open source edition is free; the commercial ReadyAPI product is paid.
Command line	Windows, macOS, Linux
Tests REST, GraphQL, gRPC and SOAP in one format Imports from OpenAPI, Postman and Insomnia	Strong SOAP and WSDL support Functional test suites with custom scripting
No graphical interface for manual requests Requires Node.js or Docker to run	GraphQL, gRPC and CI integrations are reserved for paid ReadyAPI Website heavily promotes the commercial product
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.